MM-007024-001
45
13 OPTIONAL
CABLES
13.1 FULL-DATA I/O OPTION CABLE
The Full-Data I/O Option Cable 1000022242-0001 connects to the radio’s 44-pin I/O cable connector. It
breaks out into three (3) separate D-subminiature 9-pin (DB-9) type connectors. It also has blunt-end
wires (i.e., not stripped or terminated with a connector) for optional/miscellaneous connections. This
combination allows straightforward access to all external I/O connections provided by the radio. It also
helps speed radio removal and re-installation time when required.
When connected, each DB-9 connector of the Full-Data I/O Option Cable is a TIA/EIA-232 data interface
port for the radio. The connector labeled “SERIAL” is the radio’s serial programming port. The connector
labeled “MODEM” supports the RF modem function that the radio can provide. The connector labeled
“GPS” provides NMEA-formatted GPS serial data connections for the external computer processing the
NMEA-formatted GPS data received by the radio’s internal GPS receiver. The intent is for this option
cable to adapt to standard 9-pin serial computer cables, or alternatively plug directly into the computer’s
or mobile data terminal’s serial port connector.
The blunt-end wires of the Full-Data I/O Option Cable provide connections for the following: (2) vehicle
signal inputs, (2) TTL logic level inputs, (2) open-collector logic outputs, and a baseband audio in/out
with PTT input and activate output. Table 13-1 shows the wiring of the Full-Data I/O Option Cable.
Table 13-1: Full-Data I/O Option Cable 1000022242-0001 Wire Interconnections
44-PIN I/O
CABLE
CONNECTOR PIN
DB-9
CONNECTOR
NAME & PIN
2
SIGNAL
NAME
DESCRIPTION
1
SERIAL pin 7
CTS_A
TIA/EIA-232 Signal, Radio Serial Port
2
SERIAL pin 8
RTS_A
TIA/EIA-232 Signal, Radio Serial Port
3
SERIAL pin 1
DCD_A
TIA/EIA-232 Signal, Radio Serial Port
4
GPS pin 3
GPS_NMEA_RD
TIA/EIA-232 Signal, GPS Output Data
5
(N/C)
(Pin 5 of 44-pin connector not used.)
6
MODEM pin 6
DSR_B
TIA/EIA-232 Signal, Modem Input
7
MODEM pin 4
DTR_B
TIA/EIA-232 Signal, Modem Input
8
MODEM pin 2
RD_B
TIA/EIA-232 Signal, Modem Input
9
MODEM pin 9
RI_B
TIA/EIA-232 Signal, Modem Input
10 (Wht/Blk)
AUD_IN_PTT*
Push-to-Talk for Audio Input (active low)
11
(Orange)
TTL_IN1
TTL Digital Input #1
12
(Blue)
TTL_IN2
TTL Digital Input #2
13
(Gray)
OC_OUT2
Open-Collector Digital Output #2
14
(Yellow)
IN_SHLD
Baseband Audio Input Shield
15 (Wht/Red)
AUD_IN_L
Differential
Audio Input Low (1/2 of twisted pair)
16
SERIAL pin 2
TD_A
TIA/EIA-232 Signal, Radio Serial Port
17
SERIAL pin 5
(shell)
GND_A
TIA/EIA-232 Ground, Radio Serial Port
2
No connection (n/c) terminations and blunt-wire colors are shown in parentheses.